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Finding the Fourth Proportional to 391,260.33, 586,126.44 and 269,659.11

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Solution

The fourth proportional to 391,260.33, 586,126.44 and 269,659.11 is: 403,962.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,260.33 : 586,126.44 = 269,659.11 : x
  2. Step 2: Convert to fraction form
    391,260.33/586,126.44 = 269,659.11/x
  3. Step 3: Cross multiply
    391,260.33x = 586,126.44 × 269,659.11
  4. Step 4: Simplify right side
    391,260.33x = 158,054,334,157.87
  5. Step 5: Solve for x
    x = 158,054,334,157.87/391,260.33
  6. Step 6: Final answer
    x = 403,962.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.